X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6
Temperature 277.0
Details PEG 4000, isopropanol, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 70.12 α = 90
b = 75.92 β = 90
c = 77.84 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD PRINCETON 2K -- 1997-12-04
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE A1 0.91 CHESS A1

Data Collection

Overall
Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot
1.8 20 97.8 -- 0.103 -- 7.0 -- 38968 -- 4.0 --
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
1.8 1.82 87.5 -- 0.259 -- 4.0 --

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
FOURIER SYNTHESIS 1.8 20.0 -- 2.0 -- 35866 3608 -- -- -- 0.224 0.252 random
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 1.8 1.81 370 41 -- 0.211 0.238 -- --
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.24
c_bond_d 0.006
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2994
Nucleic Acid Atoms 0
Heterogen Atoms 66
Solvent Atoms 186

Software

Software
Software Name Purpose
CNS refinement
DENZO data reduction
SCALEPACK data scaling
CNS phasing